Harrow attachment for plows.



W. ZIMIVIERMANN, JR.

HARROW ATTACHMENT FOR FLOWS.

APPLICATION HLHJ NOV, :2, 1915.

1,1 96,681. Patented Aug. 29, 1916.

2 SHEETS-SHEET I.

anon- 01 ZK Z ZZZ Q 71/ Zak/121ml mail/(72' W. ZIMIVIERMANN, JR.

HARROW ATTACHMENT FOR FLOWS.

APPLICATION man NOV, [2. m5.

1 1|. 96,63 1 Patented Aug. 29, 1916.

2 SHEETSSHEET Z.

.JMM, @532 74% WILLIAM ZIMMERIVIANN, JR., 013 FREEBURG, ILLINOIS.

HARROW ATTACHMENT FOR FLOWS.

Specification of Letters Patent.

Application filed November 12, 1915. Serial N 0. 61,113.

To all whom it may concern:

Be it known that I, WILLIAM ZIMMER- MANN, J r., a citizen of the UnitedStates, residing at Freeburg, in the county of St. Clair and State ofIllinois, have invented new and useful Improvements in HarrowAttachments for Plows, of which the following is a specification.

This invention relates to harrow attachments for sulky plows, and it hasfor its object to produce a light, inexpensive and Simple harrowattachment which maybe quickly and conveniently attached to p the frameof a sulky or riding plow of almost any conventional type for thepurpose of breaking and pulverizing the soil as it is being turned bythe plow.

A further object of the invention is to produce a harrow attachment ofsimple and improved construction, embodying a harrow, the teeth of whichmay be tilted to various angles, a frame carrying said harrow and meansfor raising and lowering said frame from and to a working position.

With these and other ends in View which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claims.

In the accompanying drawings has been illustrated a simple and preferredform of the invention, it being, however, understood that no limitationis necessarily made'to the precise structural details therein exhibited,but that changes, alterations and modifications within the scope of theclaims may be resorted to when desired. In the drawings,Figure 1 is atop plan view showing the improved device attached to a riding plow.Fig. 2 is a side elevation, showing the device mounted on the frame of ariding plow and in position for operation. Fig. 3 is a side elevation,showing the device mounted on the frame of a plow and-in a raised orinoperative position. Fig. 1 is a sectional detail view, enlarged, takenon the line 4.4 in Fig. 1. Fig. 5 is asectional detail View, enlarged,taken on the line 55 in Fig. 1. Fig. 6 is a sectional detail view,enlarged, taken on the line 66 in Fig. 1.

Corresponding parts in the several figures are denoted by likecharacters of reference.

The frame of the improved device includes two side members which aredisposed in approximately parallel relation, one of said members 15being of a length materially exceeding that of the member 16 which isdisposed in substantially parallel relation thereto. The side membersare slightly bent at their forward ends to form lugs or brackets 17 18adapted to be pivotally connected by pins or bolts 19 with supportingmembers 20, 21 which are mounted on the frame A of an ordinary plowsulky. The rearward ends of the side members 15, 16 are bent to formlugs or brackets 22, 23 between which the harrow H is mounted andsupported, as will be presently more fully described. Suitably securedon the plow frame A is a segment rack 24, the same being also connectedwith the plow frame by a brace lPatentedAug. an, 1916.

member 25. A hand-lever 26 which is fulcrumed at 27 isprovided with astop member 28 engaging the segment rack for the purpose of retainingthe lever and related parts in position at various adjustments.

The frame bars 15, 16 are connected together by a cross bar 29 on whichis mounted a clamp 30 having a slot 81. A rod 32, whichis pivotallyconnected at 33 with the lower end of the hand lever 26, is providedwith a flat terminal portion 34. that extends slidably through the slot31 of the clamp 80, the flat portion 34: being provided with a pluralityof apertures 85 for the passage of a pin or bolt 36 constituting a stopmember, whereby its movement in one direction with respect to the clampmay be limited. The rod 32 and itsfiattened portion 84 are preferably'curved, as best seen in Fig. 1, in such a manner that the flattenedportion will slide readily through the slot in the clamp. A coiledspring 37 is connected at one end with the clamp 80 and at the other endwith the downwardly extending arm 26 of the lever 26, so that by meansof the lever the spring may be tensioned to force the harrow attachmentin a groundward direction.

The harrow I-I includes two bars 38 which are represented as being oftubular construction, said bars being equipped with teeth 39 which areconnected therewith in any convenient manner, it being noted that theteeth connected with the rearward bar are of greater length than theteeth connected with the forward bar. The ends of the bars 38 arepivotally supported in boxes or bearings 40 that are clamped betweenstraps or frame bars 41 at each end. The frame bars 4C1 also supportboxes 12 which are bolted pivot members 43 whereby the harrow frame ispivotally connected with the lugs or I brackets 22, 23 of the frame bars15, 16.

Each harrow bar 38 is provided with an upwardly extending arm 44,saidarms being pivotally connected with the ends of a con necting bar45, whereby when one harrow bar is rocked about its axis, acorresponding movement will be transmitted to the other harrow bar, thusenabling the teeth of the two harrow bars to be simultaneously adjustedto various slanting or inclined positions with. respect to the surfaceof the ground. Onev of the harrow bars is provided with an arcuate armor segment 46 having a plurality of perforations 47, any one of whichmay be connected by means of a bolt 48 with one end of-an adjusting rod49, the other end of which is connected at '50 with the frame bar 15. Itwill thus be seen that by proper adjustment of the bolt 48, the harrowbars may be adjusted so as to present the harrow teeth at various angleswithrespect to the ground and to retain them in adjusted positionwhenthe device is in operation. a

From the foregoing description, taken in connection with the drawingshereto annexed, it will be readily seen that by manipulating the lever26 the framecarrying the harrow maybe raisedor lowered, thus lifting theharrow from the ground or forcing it in the direction of the ground toan operative position where it may be held under a desired degree oftension by the spring 37, the latter being tensioned by means of thehandlever with which itis connected. The "extent to which the harrow israised may be controlled by the lever, but the range of movement may bevaried by proper adjustment of the bolt'or stop member 36 engaging theapertures in the flat portion 34 of the rod 32, said'stop member servingto i 7 limit the movement of the rod 32 through the slotted clamp 30 byabutting on said clamp. The rod 49' not only controls the slant oradjustment of the harrow teeth, but

. it also serves to prevent the harrow frame from rocking or vibratingabout the axes of the connecting pins or members 43. The improved deviceis capable of being mounted upon and used in connection with the frameof almost any conventional riding-or sulky plow, and when properlyadjusted and used it will serve to break and pulverize the soil that isbeing turned by the plow, leaving the same in excellent condition forseeding, and

thus saving a great amount of time, inasmuch as it attains at a singlepassage over the field the same results which have heretofore beenaccomplished only by two or more passages over the field with implementsof various descriptions. The improved device, moreover, is light,inexpensive and easily applied or removed, as may be desired.

Having thus described the invention, what is claimed as new, is

1. In a harrow attachment for riding plows, a pair of frame barspivotally supported attheir forward ends, a harrow supported between therearward ends of the bars, a cross bar connecting the frame bars, aclamp on said cross bar having a vertical slot, a hand lever, a rodconnected with said lever and having a portion slidably engaging theslotted clamp, stop means for limiting the movement of the rod in onedirection with respect to the clamp, and means for retaining the handlever in position at various adjustments.

2. In a harrow attachment for riding plows, a pair of frame barspivotally supported at their forward ends, a harrow supported betweenthe rearward ends of the bars, a cross bar connecting the frame bars, aclamp on said cross bar having a vertical slot, a hand lever, a rodpivotally connected with saidlever and slidably engaging the slottedclamp, a coiled spring connecting the clamp with the lever to assist inforcing the frame and the harrow in a groundward direction, and meansfor retaining the hand lever in position at various adjustments.

3. In a h'arrowattachment for riding plows, a pair of frame barspivotally supported at their forward ends, a harrow supported betweenthe rearward ends of the frame bars, a slotted clamp constituting aguide member fixed on the harrow supporting frame, a hand lever, a pushrod connected with the lever and guidedslidably with respect to theguide member, a stop member adjustably connected with the push rod,and'adapted to abut on the guide member to exert a pushing actionagainst the same'to lift the harrow from the ground, and a springconnecting the guide member with the lever and adapted to be tensionedto force the harrow ina groundward direction. In testimony-whereof Ialiix my signature in presence of two witnesses.

WILLIAM ZIMMERMANN, J n Witnesses:

Josnrrr' C. BECKER,

Josnrn G. REUTER.

Copies of this patent may be obtained for five cents each; by addressing.the Commissioner of Patentu,

' v Washington, D. 03f

